级联机 meaning in English

cascade machine

Db2 backup database sample online to e : - tmp
要执行数据库级联机备份，可以发出以下命令：
To do a tables space level online backup , issue the command
要执行表空间级联机备份，可以发出以下命令：
For online backups , there are two levels of backups that can be taken , table space and database level online backup
对于联机备份，有两种可以采用的备份级别：表空间级和数据库级联机备份。
Resource bundles use a cascading mechanism to provide the best translation support with the minimal amount of work for both the developer and resources of the computer
资源束使用级联机制来提供最佳的译文支持，并使开发者的工作量和计算机的资源降到最低。